Loud ? Nope, it does not look normal.
It does do a high pitch sound when turned on, but it’s quiet. I’ve heard 2.0 stations are a bit louder than 1.0, but I never read any complaints about loud noise.
Does both of your stations do that noise ?
Do you use a normal electric setup ? Try changing outlet, using / removing chord, make sure you have the adequate voltage for the stations, etc…